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intel/brw: Only validate GRF boundary crossing restriction for GRFs

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31294>
This commit is contained in:
Caio Oliveira 2024-09-20 15:17:28 -07:00 • committed by Marge Bot
parent 878ae9708a
commit e1b74407bb
1 changed files with 25 additions and 22 deletions
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47
src/intel/compiler/brw_eu_validate.c
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@ -1014,10 +1014,11 @@ general_restrictions_on_region_parameters(const struct brw_isa_info *isa,
for (unsigned i = 0; i < num_sources; i++) {
unsigned vstride, width, hstride, element_size, subreg;
enum brw_reg_type type;
enum brw_reg_file file;
#define DO_SRC(n) \
if (brw_inst_src ## n ## _reg_file(devinfo, inst) == \
IMM) \
file = brw_inst_src ## n ## _reg_file(devinfo, inst); \
if (file == IMM) \
continue; \
\
vstride = STRIDE(brw_inst_src ## n ## _vstride(devinfo, inst)); \
@ -1075,29 +1076,31 @@ general_restrictions_on_region_parameters(const struct brw_isa_info *isa,
/* VertStride must be used to cross GRF register boundaries. This rule
* implies that elements within a 'Width' cannot cross GRF boundaries.
*/
unsigned rowbase = subreg;
assert(util_is_power_of_two_nonzero(reg_unit(devinfo)));
unsigned grf_size_shift = ffs(REG_SIZE * reg_unit(devinfo)) - 1;
if (file == FIXED_GRF) {
unsigned rowbase = subreg;
assert(util_is_power_of_two_nonzero(reg_unit(devinfo)));
unsigned grf_size_shift = ffs(REG_SIZE * reg_unit(devinfo)) - 1;
for (int y = 0; y < exec_size / width; y++) {
bool spans_grfs = false;
unsigned offset = rowbase;
unsigned first_grf = offset >> grf_size_shift;
for (int y = 0; y < exec_size / width; y++) {
bool spans_grfs = false;
unsigned offset = rowbase;
unsigned first_grf = offset >> grf_size_shift;
for (int x = 0; x < width; x++) {
const unsigned end_byte = offset + (element_size - 1);
const unsigned end_grf = end_byte >> grf_size_shift;
spans_grfs = end_grf != first_grf;
if (spans_grfs)
for (int x = 0; x < width; x++) {
const unsigned end_byte = offset + (element_size - 1);
const unsigned end_grf = end_byte >> grf_size_shift;
spans_grfs = end_grf != first_grf;
if (spans_grfs)
break;
offset += hstride * element_size;
}
rowbase += vstride * element_size;
if (spans_grfs) {
ERROR("VertStride must be used to cross GRF register boundaries");
break;
offset += hstride * element_size;
}
rowbase += vstride * element_size;
if (spans_grfs) {
ERROR("VertStride must be used to cross GRF register boundaries");
break;
}
}
}
}